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Comment on this what it is so I can help you
Answer:

Explanation:
Hello!
In this case, for the given chemical reaction:

We can see a 4:2 mole ratio between lithium nitrate (68.946 g/mol) and lithium sulfate (109.94 g/mol); in such a way, via stoichiometry, the required mass of lithium nitrate to make 250 g of lithium sulfate turns out:

Best regards!
The above reaction is a single replacement reaction.
In single replacement reaction, Zn reacts with HCl and displaces H⁺ from the compound HCl and takes the place of H⁺ and forms a new compound ZnCl₂. the displaced hydrogen is then released as hydrogen gas.
Single replacement reactions take place when the element that is displacing the other element is more reactive than the latter.
In this case, Zn is placed higher than H in the reactivity series therefore Zn is more reactive than H, therefore takes the place of hydrogen ion.
D=density
m=mass
v=volume
d=m/v
m=176 g
v=(4 cm)³=64 cm³
d=176 g/64 cm³=2.75 g/cm³
The desnity of the aluminum is 2.75 g/cm³
The answer is B, it’s like when (s) is an solid and (g) is a gas,etc.